Biotic and environmental factors affect Southwest Atlantic saltmarsh use by juvenile fishes

Trophic segregation of a fish assemblage along lateral depth gradients in a subtropical coastal lagoon revealed by stable isotope analyses

“…g . benthic fauna composition and sediment penetrability), having significant effects on habitat use by fishes (Crinall & Hindell, ; Valinãs et al ., ).…”

Climate activism: what we know and what more we need to learn. A psychological and sociological review

“…Lubell, 2002;Rees & Bamberg, 2014;Tindall, 2002); these results are often interpreted as youth having more time and flexibility on their side to be able to engage in activism. However, others have shown that age is negatively related to environmental activism (Brick et al, 2017;Mark Lubell et al, 2006;Roser-Renouf et al, 2014;Valinas et al, 2012); this second observation has not attracted much interpretative interest.…”

“…This study showed that the collapsed attitude score was significantly positively correlated with the intention to engage in environmental activism (1-7 rating). One study used the European Value Survey and the World Value Survey to study the effect of environmental attitudes on volunteer work with environmental orgs, across 32 European countries (Valinas et al, 2012). In this study, attitudes were operationalized as 0-3 ratings of the "willingness to give up part of one's stipend or to increase taxes if the extra money would be used to prevent environmental pollution," and shown to be strongly positively correlated with reported volunteer work in an environmental organization.…”

“…As described in the affective involvement section, indeed Rees et al (2014) showed that moral outrage has an indirect effect on collective action intention via social identification. Valinas et al (2012), found that perception of public littering (assessed by subjective rating of the question "according to you, how many of your compatriots through away litter in a public place?" from 1=almost none to 4=almost all) is positively correlated with the support of tax increases to fund pro-environmental policy; this suggested that the internalized values of environmental protection trigger even greater motivation in response to environmental disregard by others.…”

Characteristics of the fish assemblages in the intertidal salt marsh zone and adjacent mudflat in the Yangtze Estuary

“…Shannon-Wiener 多样性指数: [34] 。 生物因子根据来源特征又可以分为两大类。 其一为鱼类自身的生物学和生活 史特性,如 Able 等人研究发现同种鱼的成鱼和幼鱼的运动能力不同导致不同发育阶段个体生境分布的差 异 [35] ,前述黑线尾隐鳉的成鱼和幼鱼在不同生境分布特征存在明显差异也是一个典型的例子 [33] 。 本文研究 [36] 。 目前,相当多的研究证明,生物因子对鱼类群落在盐沼湿地不同生境中的分 布具有重要影响。 不同动物类群的出现与组成会影响各自在盐沼湿地,包括不同深度水层的分布 [7,37] ;特别 是饵料生物的组成与分布,往往直接关系到盐沼湿地鱼类的组成与分布 [34] 。 本研究发现,植被分布区鱼类群 落的多度、生物量与同期海三棱藨草带大型底栖动物瓣鳃类的变化特征基本一致 [25] ,两者是否存在营养关系 或者仅仅是数量变化上的巧合,还有待进一步研究。 除了动物类群,植被也是盐沼湿地非常重要的生物因素。 虽然相当多的研究表明,植被类型的差异对鱼 类群落的组成与分布的影响并不明显 [17, 38鄄 39] ,但植被的出现 [40鄄 41] 、植被生长与表形特征,如植株密度 [42] ,却 39,45] 、淹水 深度 [46] 等,都会对盐沼湿地鱼类的组成与分布产生重要影响。 这些生物与非生物因素并不是单独起作用,而 是相互联系、相互影响,共同作用于鱼类群落 [34] 。 如 Lopez 等人对盐沼湿地食蚊鱼( Fundulus jenkinsi) 研究发 现,在下列条件下具有较高的密度:植株密度<25 株 / 0. 25 m 2 ,水深<25 cm,岸坡<15 毅,浊度<30 NTU,盐度<…”